Signor of one-fourth to george c



(No Model.)

P. G. TALLERDAY. PAWL AND RATOHET MECHANISM.

No. 439,613. Patented Oct. 28, 1890.

UNITED STATES FRANKLIN Gr. TALLERDAY, OF

PATENT OFFICE.

TRYON CITY, NORTH CAROLINA, AS-

GROVE, ILLINOIS.

PAWL-AND-RATCHET MECHANISM.

SPECIFICATION forming part of Letters Patent No. 439,613, dated October 28, 1890.

Application filed May 31, 1890.

To all whom it may concern:

Be it known that I, FRANKLIN G. TALLER- DAY, a citizen of the United States, residing at Tryon City, Polk county, and State of North Carolina, have invented certain new and 'useful Improvements in PaWl-and-Ratchet Mechanisms, of which the following is a specification.

The object of my invention is the modification and improvement of the mechanism shown and described in an application for a patent for an improvement in pawl andratchet mechanisms now pending in the United States Patent Office, filed May 10, 1889, and having the Serial Number 310,339, so as to adapt the same to be used in connection with suitable auxiliary devices as a windmill regulator; and the invention consists of certain new and useful features of construction and combinations of parts hereinafter described, and pointed outin the claims.

Referring to the accompanying drawings, which form a part of this specification, Figure 1 is a side elevation of the pawl-andratchet mechanism provided with my improvement, the driving -arm being broken away to show the construction and connection of the parts located behind the same. Fig. 2 is a like view of the same, except that the ratchet-wheel thereof is turned a halfrevolution from the position shown in Fig. 1. Fig. 3 is an under side View of the more intricate parts of the machine in operative position and relation. Fig. 4 is a back side view of the pallet and middle portion of the driving-arm and their respective connections. Fig. 5 is a view of my improvement mounted on a windmill -tower and operatively connected with a windmill, (not shown,) a pump,

and a Water-tank.

Like letters of reference indicate corresponding parts throughout the several views.

A is the base-plate of the machine.

B is a ratchet-wheel having a portion of its teeth, as those included between the letters B, depressed below the remainder thereof, and being provided with a peripheral depression B at the outer termination of the more prominent teeth-those included between the Serial No. 353,851. (No model.)

letters 13*. As about one-third of the periphery of the ratchet-Wheel is idle, it is neither desirable nor necessary that that portion be provided With'teeth. The wheel B is mounted on the horizontal bearing B which is rigidly connected with the base-plate A.

O is a longitudinally-reciprocating detent adapted to engage endwise with the teeth B B of the ratchet-wheel B and prevent the same from revolving in one direction, and mounted in slideways D D, which are covered with caps D D C is a stud projecting from the outside of the detent O.

O is a detent-actuating spring coiled about the detent Oand included between the end of the slideway and cap D D and stud O.

E is a longitudinally reciprocating bar mounted in the slideways D D and serving intermediately to connect the detent C with a pallet, to be described hereinafter.

E is a cross-piece integral or rigidly connected with the bar E and curved in the form of a segment of a circle, to-serve as a guide for a part to be described hereinafter.

E is a stud projecting transversely and horizontally from the outside of the bar E.

F is a lever engaging with the stud E for simultaneously disengaging the detent C and pallet, to be described, from the ratchetwheel B, if desired, and is mounted on the pivot F.

G is a bearing-plate, from which project the pallet-bearings G G G is a longitudinally-1aterally-reciprocating pallet adapted to engage with the teeth B B of the ratchet-wheel B and revolve the same in a direction opposite to that prevented by the detent O.

G is a stud projecting from the outside of the pallet G I G is a pallet-actuating spring coiled about the pallet G and included between the bearing G and stud G H is a driving-arm, Whereto the bearingplate G is firmly secured, pivotally connected with the bearing B and the pumping-rod I through the media of the horizontal slot H therein and the pin 1.

J is an ungearing-arm, secured by one end thereof to the ratchet-wheel B.

K is an ungearing-wire, one end whereof is connected with the arm J by means of the holes J therein.

L is a bell-crank mounted in the ordinary way on the tower A.

L is a wire connecting the upper end of the bell-crank L with the lowerend of the lever F by means of a hole I therein.

L is a wire depending from the hole L in the bell-crank L. L is a float of wood or other suitable material attached to the lower end of the wire L and supported by water M in the tank M.

N is a pump in connection, through the pumping-rod I, with the arm ll.

Fig. 1 shows the machine with the parts in the positions they assume when the same is at rest, the tank filled, and the windmill (not shown) out of gear.

Considering the machine, as shown in Fig. 1, as the starting-point, its operation is as follows: lVheuever any considerable amount of water is withdrawn from the tank M by the drinking of animals or otherwise, the float L descends, and through the media of the wire L bell-crank L, wire L, lever F, reciprocatin g bar E, and cross-piece E forces back and disengages the detent O and pallet G from the ratchet-wheel B and retains them in the position indicated by dotted lines in Figs. 1 and 3, whereupon a weight, (not shown,) held in suspension by the wire K while taut, descends and throws the windmill into gear and at the same time draws the wire K upward, thereby carryingthe arm J and revolving the ratchet-wheel B to the position shown in Fig. 2. The mill having swung into the wind and being new in gear commences and continues to revolve and drive the pumping-rod I until the tank M is filled, when the float L is lifted by the water in the tank, thereby releasing the lever F and allowing the detent O and pallet G3 to reengage with the ratchet-wheel B, as shownin Fig. 2. The mill, willcontinue to revolve longitudinally reciprocating the pumping-rod I, which reciprocates the driving-arm II, as indicated by the double arrows and dotted lines, and with it the pallet G, which engages with the teeth of the ratchet-wheel B and revolves it, together with the arm J, to the position shown in Fig. 1, thereby, through the wire K, throwing the mill out of gear and leaving the machine and its connections in precisely the same positions as at the outset. As the pallet G descends with each stroke of the driving-arm H, the detent C prevents the ratchet-wheel B from being revolved downward by the action of the pallet and weight (not shown) operating upon the arm J through the medium of the wire K. Obviously the detent C does not prevent the pallet G from revolving the ratchet-wheel B and the arm J upward or in a direction opposite of that just mentioned. The wire K remains slack while the mill is pumping, the ratchet-wheel B being in the position shown in Fig. 2, and the detent U and pallet G" being held out of engagement therewith,asindicated by thedottcd lincsX X in Figs. 1 and 3, until the float L rises, and through the intermediate connectious forces the lever F to release the dc: tent C and pallet G when the springs (J G" will cause their points to re-engagc with the teeth 13 of the ratchet-wheel 13, as shown in Fig. The effect of the first few strokes of the driving-arm ll, detent U, and pallet G", after the two latter come into engagement with the depressed teeth 13 in Fig. 2, is simply to take up the slack of the wire K, preparatory to throwing the mill out of gear. During the operation of taking up the slack of the wire K, to which reference has ust been made, the ratchet-wheel B oscillates on its bearing sufficiently to cause the points of the detent Cand the pallet G and the teeth of the ratchet-wheel B, when the teeth thereof are all of the same length, to grind against each other and wear away the points of the detent, pallet, and teeth.

I have found by trial that if the teeth employed in the preliminary operation of taking up the slack of the wire K, as those included between the letters 3' are depressed so that the points of the detent O and pallet Gr only partially engage with the same, the wearing away of those parts is practically obviated. By the time the slack is taken out of the wire K the detent C and the pallet Q will be well engaged withthe more prominent teeth 13 of the ratchet-wheel B. A few strokes of the driving arm II will then, through the media of the arm J and wire K, lift the weight (not shown) and throw the mill completely out of gear. However, after the detent C and the pallet G have passed into the depression B the pumping-rod I may make two or three partial strokes and cause the detent C and pallet G to move up and down, which they may freely do, traveling back and forth in the depression 13 which is of such depth that theirpoints do not come in contact; with the bottom thereof, and thereby sutfer wear from contact therewith.

By constructing the ratchet-wheel B with the depressed teeth B and a peripheral depression W, as shown and described, I have perfectly adapted the mechanism to be used in regulating windmills.

I claim 1. In combination, a ratchet-wheel having a portion of its teeth depressed below the remainder thereof and being provided with a peripheral depression at the outer termination of the more prominent teeth, the detent adapted to engage with and stop the same, the pallet arranged to engage with and revolve said ratchet-wheel, the bar connecting the detent and pallet, the lever for operating said bar and connections, and the necessary bearings for supporting and operating all of said parts, substantially as set forth.

2. In combination, a ratchet-wheel having a portion of its teeth depressed below the remainder thereof, a detent adapted to engage with and prevent the same from revolving in one direction, a pallet arranged to engage with said ratchet-wheel and revolve the same in a direction opposite to that prevented by said detent,. a vertically-reciprocatin g driving-arm whereon the said pallet is mounted and whereby it is operated, a bar connecting said detent and pallet, and means for operating said bar and connections, substantially as described, and for the purpose specified.

3. In combination, in a pawl-and-ratchet mechanism, a ratchet-wheel having a portion of its teeth, as those included between the letters B, depressed below the remainder thereof and being provided with a peripheral depression E at the outer termination of the more prominent teeth, those included between the letters B alongitudinally-reciproeating detent adapted to engage with and prevent the same from revolving in one direction, a longitudinally vertically reciproeating pallet arranged to engage with and revolve said ratchet-wheel in a direction opposite to that prevented by said detent, a vertically-reciprocatin g arm whereon said pallet is mounted and whereby it is operated, a longitudinally-reciprocating bar connecting said detent and pallet, a lever for operating said bar and the parts connected therewith, a suitable base-plate, and proper bearings for uniting and supporting all of said parts in operative position and relation, substantially as specified, and for the purpose set forth.

FRANKLIN G. TALLERDAY. Witnesses:

G. M. CANTON, J. N. YOUNG. 

